test

Upgrade to pyperf 2.8.1 #1713

Job	Run time
ubuntu-latest - 3.9	6m 2s
ubuntu-latest - 3.10	6m 34s
ubuntu-latest - 3.11	7m 28s
ubuntu-latest - 3.12	7m 58s
ubuntu-latest - 3.13	7m 51s
ubuntu-latest - 3.13-dev free-threading	9m 28s
ubuntu-latest - 3.14-dev	7m 57s
ubuntu-latest - 3.14-dev free-threading	9m 42s
ubuntu-latest - pypy-3.10	10m 0s
ubuntu-latest - pypy-3.9	9m 25s
macos-latest - 3.13	6m 9s
windows-latest - 3.13	12m 33s
	1h 41m 7s

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